Home / 862,948.40-1,190,874.32-480,999.40

Finding the Fourth Proportional to 862,948.40, 1,190,874.32 and 480,999.40

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Solution

The fourth proportional to 862,948.40, 1,190,874.32 and 480,999.40 is: 663,782.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,948.40 : 1,190,874.32 = 480,999.40 : x
  2. Step 2: Convert to fraction form
    862,948.40/1,190,874.32 = 480,999.40/x
  3. Step 3: Cross multiply
    862,948.40x = 1,190,874.32 × 480,999.40
  4. Step 4: Simplify right side
    862,948.40x = 572,809,833,395.41
  5. Step 5: Solve for x
    x = 572,809,833,395.41/862,948.40
  6. Step 6: Final answer
    x = 663,782.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.